Abductive Reasoning Task

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An abductive reasoning task is a non-monotonic reasoning task that requires an abductive argument.



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  • (Wikipedia - Abductive Reasoning, 2010) ⇒ http://en.wikipedia.org/wiki/Abductive_reasoning
    • QUOTE: Abduction is a kind of logical inference described by Charles Sanders Peirce as "guessing" (Pierce, 1901). The term refers to the process of arriving at an explanatory hypothesis. Peirce said that to abduce a hypothetical explanation [math]a[/math] from an observed surprising circumstance [math]b[/math] is to surmise that [math]a[/math] may be true because then [math]b[/math] would be a matter of course (Pierce 1903). Thus, to abduce [math]a[/math] from [math]b[/math] involves determining that [math]a[/math] is sufficient (or nearly sufficient), but not necessary, for [math]b[/math].

      For example, the lawn is wet. But if it rained last night, then it would be unsurprising that the lawn is wet. Therefore, by abductive reasoning, the possibility that it rained last night is reasonable. …

      Peirce argues that good abductive reasoning from P to Q involves not simply a determination that, e.g., Q is sufficient for P, but also that Q is among the most economical explanations for P. Simplification and economy are what call for the 'leap' of abduction.

      There has been renewed interest in the subject of abduction in the fields of computer science and artificial intelligence research.


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